Electric Motor
An electric motor is a device that converts electrical energy into mechanical energy by using the force on a current-carrying coil in a magnetic field.
Practice This ConceptMain explanation
Teacher explanation
When current flows through the coil of a motor placed in a magnetic field, forces act on the two sides of the coil in opposite directions. These forces create a turning effect, so the coil rotates. The split-ring commutator helps keep the coil rotating in the same direction. Motors are used in fans, mixers, washing machines, and many other appliances.
Example
A ceiling fan works because an electric motor rotates its blades when current passes through the coil system inside it.
Simple analogy
Motor means current becomes motion.
Common confusion
Students often say the motor itself produces electricity. In fact, it uses electricity to produce motion.
Exam tip
In answers, mention the rotating coil, magnetic field, and commutator together for full marks.
Study the electric motor diagram carefully
Use the labelled diagram to keep electric motor clear in short answers and revision.
What this diagram makes clear
This diagram keeps the labels and direction of electric motor in the right order.
Where this helps in exams
Use this for labelled diagram work and short exam answers on electric motor.
Revision cue
Revise electric motor through the labels before writing the answer.
Answer writing and exam use
1-mark use
Write the exact meaning of electric motor in one clean line.
2-mark use
Define electric motor and add one example or condition.
3-mark use
Explain electric motor, show the method or example, and mention the common mistake.
Practice this concept with focused MCQs
Open the concept quiz intro first, review the test details, and then start a focused MCQ set from this concept only. Instant score and answer review are live now.
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